Lifting table
A lifting table is disclosed herein. It comprises a table board; two legs, each having a hollow outer column and a hollow inner column connected to a table board, a first guiding seat connected to a bottom of the hollow inner column and having a first guiding wheel for contacting an inner wall of the hollow outer column, a second guiding seat disposed at an top of the hollow outer column and having a second guiding wheel for contacting an outer wall of the hollow inner column; and a height adjusting apparatus having a gas spring inserted into the hollow inner column of each of the two legs and a control portion disposed on a top of the gas spring. A bottom and a top of the gas spring are respectively connected to a bottom of the hollow outer column and a top of the hollow inner column.
The present invention relates to a lifting table which assembles conveniently and adjusts a height of the lifting table smoothly by non-tilted elevating or lowering a table board thereof so as to achieve effects of diverse application by different users and increase practicality in its overall application.
2. Description of Related ArtThe U.S. Ser. No. 10/321,455 (B1), issued on 18 Jun. 2019, discloses an elevating apparatus of a table. It mainly comprises a board, two legs and a height adjusting apparatus. The two legs are connected to two lateral members disposed at a bottom of the board respectively and each has a leg base at a bottom thereof, a hollow outer column disposed on the leg base and having a guide rail disposed on at least one internal side thereof, a teeth-guiding slot and a pulley slot disposed at two corresponding sides thereof adjacent to the at least one internal side, and an inner column movably inserted into the hollow outer column and connected to the board at a top side thereof. The height adjusting apparatus comprises a gas spring inserted into the inner column of each of the two legs, a chute disposed outside the inner column and corresponding to the guide rail of the hollow outer column, plural arc portions equally spaced apart from each other at two laterals of the chutes for contacting the guide rail, a gear rack disposed at the inner column for correspondingly engaging with the guide gear, and a pulley pivotally connected to the pulley slot of the hollow outer column for contacting the inner column.
Although the abovementioned elevating apparatus of a table achieves effects of adjusting height of the table, the overall structural design of the elevating apparatus of a table is complicated due to the guide rail in the hollow outer column, the chute outside the inner column corresponding to the guide rail, the guide gear and the gear rack disposed between the hollow outer column and the inner column for engaging with each other, and the pulley pivotally connected to the hollow outer column for contacting the inner column. Therefore, the elevating apparatus of a table is not easy to assemble, prone to damage and has a high production cost, and improvement of a whole design of the aforementioned elevating apparatus of a table is needed.
SUMMARY OF THE INVENTIONThe present invention relates to a lifting table which assembles conveniently and adjusts a height of the lifting table smoothly by non-tilted elevating or lowering a table board thereof so as to achieve effects of diverse application by different users and increase practicality in its overall application.
Referring to
The table board (1) has two lateral members (11) at a bottom thereof.
The two legs (2) are connected to the two lateral members (11). Please refer to
The height adjusting apparatus (3) has a gas spring (31) and a control portion (311) disposed on a top of the gas spring (31). The gas spring (31) is inserted into the hollow inner column (23) of each of the two legs (2). A bottom of the gas spring (31) is connected to a bottom of the hollow outer column (22), and a top of the gas spring (31) is connected to a top of the hollow inner column (23). An elevating control lever (32) is further provided for connecting the two hollow inner columns (23) of the two legs (2), and the elevating control lever (32) has two first pressing members (321) at two ends thereof corresponding to the two control portions (311) of the two gas springs (31).
Referring to
Referring to
Compared to the existing lifting table, the present invention assembles conveniently and adjusts a height of a lifting table smoothly by non-tilted elevating or lowering a table board of the lifting table. Therefore, the present invention achieves effects of diverse application by different users and increases practicality in its overall application.
Claims
1. A lifting table, comprising:
- a table board having two lateral members disposed at a bottom thereof;
- two legs connected to the two lateral members of the table board respectively, each having a leg base at a bottom thereof, a hollow outer column disposed on the leg base, a hollow inner column movably inserted into the hollow outer column and connected to the table board at a top side thereof, a first guiding seat connected to a bottom of the hollow inner column and having a first guiding wheel at an outer edge thereof for contacting an inner wall of the hollow outer column, and a second guiding seat disposed at a top of the hollow outer column and having a second guiding wheel at an inner edge thereof for contacting an outer wall of the hollow inner column; and
- a height adjusting apparatus having a gas spring inserted into the hollow inner column of each of the two legs and a control portion disposed on a top of the gas spring, wherein a bottom of the gas spring is connected to a bottom of the hollow outer column and a top of the gas spring is connected to a top of the hollow inner column.
2. The lifting table as claimed in claim 1, wherein the hollow outer column of each of the two legs has a slot at one lateral thereof and a guiding gear pivotally connected to the slot thereof, and wherein the hollow inner column has a guiding gear rack disposed on a lateral side thereof corresponding to the slot of the hollow outer column for engaging with the guiding gear.
3. The lifting table as claimed in claim 2, wherein the guiding gear of each of the two legs is provided with a protecting cover.
4. The lifting table as claimed in claim 2, further comprising a wheel shaft for connecting the two guiding gears pivotally connected to the two hollow outer columns of the two legs.
5. The lifting table as claimed in claim 1, further comprising an elevating control lever for connecting the two hollow inner columns of the two legs, and wherein the elevating control lever has two first pressing members at two ends thereof corresponding to the two control portions of the two gas springs.
6. The lifting table as claimed in claim 1, wherein the height adjusting apparatus has a controlling switch, and wherein the controlling switch has two strings and two second pressing members corresponding to the two control portions of the two gas springs for connecting the two strings respectively.
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Type: Grant
Filed: Oct 25, 2019
Date of Patent: Feb 16, 2021
Inventor: Fong-Lung Sie (Tainan)
Primary Examiner: Jose V Chen
Application Number: 16/663,580
International Classification: A47B 9/06 (20060101); A47B 9/02 (20060101); A47B 21/02 (20060101);